Whether the condition in the given pedigree is dominant or recessive with proper explanation. Introduction: The recessive and dominant characters of the disorders can be of the following two types each, as given: autosomal dominant disorder, autosomal recessive disorder, X-linked dominant disorder, and X-linked recessive disorder.

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Answer 1

Question

Chapter 2, Problem 51P

a.

Summary Introduction

To determine: Whether the condition in the given pedigree is dominant or recessive with proper explanation.

Introduction: The recessive and dominant characters of the disorders can be of the following two types each, as given: autosomal dominant disorder, autosomal recessive disorder, X-linked dominant disorder, and X-linked recessive disorder.

b.

Summary Introduction

To determine: The genotype of the persons as many as possible.

Introduction: The homozygous dominant allele will be represented as “AA”, and the heterozygous dominant will be expressed as the allele “Aa”. However, the recessive, dominant alleles will be represented as “aa” and the wild type unknown allele (for an outsider) will be represented as “A”.

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Phenylketonuria (PKU) is a disorder caused by a recessive allele. Two carrier individuals have progeny. Answer the following questions in order and show solutions whenever relevant. a. Indicate the gene notation.b. Derive the expected genotypic and phenotypic ratios.c. If they have a normal child, what is the probability that he or she will be heterozygous?d. If they have three children, what is the probability of having 2 affected children and one normalchild?

This pedigree traces the inheritance of a rare disease in humans. a. Based on this pedigree, is the allele for this disease dominant or recessive? Explain. b. What genotypes are possible for the individuals labeled 1, 2, and 3?

Using the pedigree, assume that the disease is caused by an autosomal dominant allele, R. Give the genotype of the following individuals: (a) III-4 (the girl at lower right) (b) II-3 (the girl’s mother) (c) II-4 (the girl’s father)

Answer 2

Question

Chapter 2, Problem 51P

a.

Summary Introduction

To determine: Whether the condition in the given pedigree is dominant or recessive with proper explanation.

Introduction: The recessive and dominant characters of the disorders can be of the following two types each, as given: autosomal dominant disorder, autosomal recessive disorder, X-linked dominant disorder, and X-linked recessive disorder.

b.

Summary Introduction

To determine: The genotype of the persons as many as possible.

Introduction: The homozygous dominant allele will be represented as “AA”, and the heterozygous dominant will be expressed as the allele “Aa”. However, the recessive, dominant alleles will be represented as “aa” and the wild type unknown allele (for an outsider) will be represented as “A”.

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Answer 3

Question

Chapter 2, Problem 51P

a.

Summary Introduction

To determine: Whether the condition in the given pedigree is dominant or recessive with proper explanation.

Introduction: The recessive and dominant characters of the disorders can be of the following two types each, as given: autosomal dominant disorder, autosomal recessive disorder, X-linked dominant disorder, and X-linked recessive disorder.

b.

Summary Introduction

To determine: The genotype of the persons as many as possible.

Introduction: The homozygous dominant allele will be represented as “AA”, and the heterozygous dominant will be expressed as the allele “Aa”. However, the recessive, dominant alleles will be represented as “aa” and the wild type unknown allele (for an outsider) will be represented as “A”.

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Answer 4

Question

Chapter 2, Problem 51P

a.

Summary Introduction

To determine: Whether the condition in the given pedigree is dominant or recessive with proper explanation.

Introduction: The recessive and dominant characters of the disorders can be of the following two types each, as given: autosomal dominant disorder, autosomal recessive disorder, X-linked dominant disorder, and X-linked recessive disorder.

b.

Summary Introduction

To determine: The genotype of the persons as many as possible.

Introduction: The homozygous dominant allele will be represented as “AA”, and the heterozygous dominant will be expressed as the allele “Aa”. However, the recessive, dominant alleles will be represented as “aa” and the wild type unknown allele (for an outsider) will be represented as “A”.

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Answer 5

Chapter 2, Problem 51P

a.

Summary Introduction

To determine: Whether the condition in the given pedigree is dominant or recessive with proper explanation.

Introduction: The recessive and dominant characters of the disorders can be of the following two types each, as given: autosomal dominant disorder, autosomal recessive disorder, X-linked dominant disorder, and X-linked recessive disorder.

b.

Summary Introduction

To determine: The genotype of the persons as many as possible.

Introduction: The homozygous dominant allele will be represented as “AA”, and the heterozygous dominant will be expressed as the allele “Aa”. However, the recessive, dominant alleles will be represented as “aa” and the wild type unknown allele (for an outsider) will be represented as “A”.

Answer 6

Chapter 2, Problem 51P

a.

Summary Introduction

To determine: Whether the condition in the given pedigree is dominant or recessive with proper explanation.

Introduction: The recessive and dominant characters of the disorders can be of the following two types each, as given: autosomal dominant disorder, autosomal recessive disorder, X-linked dominant disorder, and X-linked recessive disorder.

Answer 7

Chapter 2, Problem 51P

a.

Summary Introduction

To determine: Whether the condition in the given pedigree is dominant or recessive with proper explanation.

Introduction: The recessive and dominant characters of the disorders can be of the following two types each, as given: autosomal dominant disorder, autosomal recessive disorder, X-linked dominant disorder, and X-linked recessive disorder.

Answer 8

b.

Summary Introduction

To determine: The genotype of the persons as many as possible.

Introduction: The homozygous dominant allele will be represented as “AA”, and the heterozygous dominant will be expressed as the allele “Aa”. However, the recessive, dominant alleles will be represented as “aa” and the wild type unknown allele (for an outsider) will be represented as “A”.

Answer 9

b.

Summary Introduction

To determine: The genotype of the persons as many as possible.

Introduction: The homozygous dominant allele will be represented as “AA”, and the heterozygous dominant will be expressed as the allele “Aa”. However, the recessive, dominant alleles will be represented as “aa” and the wild type unknown allele (for an outsider) will be represented as “A”.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 2 - Prob. 1P Ch. 2 - Prob. 2P Ch. 2 - Prob. 3P Ch. 2 - Prob. 4P Ch. 2 - Prob. 6P Ch. 2 - Prob. 7P Ch. 2 - Prob. 8P Ch. 2 - Prob. 9P Ch. 2 - Prob. 10P Ch. 2 - Prob. 11P

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